86572747 has 4 divisors (see below), whose sum is σ = 86627776. Its totient is φ = 86517720.

The previous prime is 86572741. The next prime is 86572751. The reversal of 86572747 is 74727568.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86572747 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86572697 and 86572706.

It is not an unprimeable number, because it can be changed into a prime (86572741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25083 + ... + 28324.

It is an arithmetic number, because the mean of its divisors is an integer number (21656944).

Almost surely, 2^86572747 is an apocalyptic number.

86572747 is a deficient number, since it is larger than the sum of its proper divisors (55029).

86572747 is a wasteful number, since it uses less digits than its factorization.

86572747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55028.

The product of its digits is 658560, while the sum is 46.

The square root of 86572747 is about 9304.4476998906. The cubic root of 86572747 is about 442.3782158182.

The spelling of 86572747 in words is "eighty-six million, five hundred seventy-two thousand, seven hundred forty-seven".